Authors:J. Magoshi, M. Becker, Z. Han, and S. Nakamura
Thermal properties of seed proteins, prolamines from rice, wheat and soybean were studied by differential scanning calorimetry
(DSC), thermogravimetry (TG), thermal expansion, X-ray diffraction and infrared spectroscopy. Prolamine films cast from aqueous
ethanol are amorphous in the random-coil conformation. The glass transition of prolamine is observed at 160, 172 and 150C
for rice, wheat and soybean, respectively. The amorphous prolamine films crystallize at 196, 205 and 199C for rice, wheat
and soybean, respectively. The thermal degradation of prolamine films occurs from 228, 250 and 270C for rice, wheat and soybean,
Authors:Hongtao Kao, Min Li, Xuewen Lv, and Jinmiao Tan
(PCM) is one of the methods to enhance the energy-saving efficiency. PCMs have unique thermalproperty. It can absorb (or release) heat from (or to) the environment during phase transition to save energy [ 1 – 3 ].
Organic PCM has the
Epoxidized palm oil (EPO) (0–12 wt%) was added into petrochemical-based epoxy blends (diglycidyl ether of bisphenol-A (DGEBA)/cycloaliphatic
epoxide resin/epoxy novolac resin) to develop a thermal curable bio-based epoxy system. The thermal behaviors of the EPO,
epoxy blends (EB), and bio-based epoxy blends (EB/EPO) were characterized using differential scanning calorimetry (DSC), dynamic
mechanical thermal analysis (DMT) and thermo-mechanical analysis (TM). The glass transition temperature (Tg) and storage modulus (E′) of the EB/EPO system was reduced with the increasing of the EPO loading. This is attributed to the plasticizing effect
of the EPO. It was found that epoxy blends with higher loading of EPO possessed higher coefficient of thermal expansion (CTE)
and tanδ value. This is due to the increase of the free volume and chain flexibility in the three-dimensional network of the epoxy
blends. The internal thermal stresses of the EB/EPO were decreased as the increasing loading of EPO, owing to the reduction
of crosslink density, modulus of elasticity, and Tg in the epoxy blends.
The thermal properties of cellulose carbamate with various nitrogen content are discussed. Thermal analysis was performed in air and under nitrogen atmosphere. The increase in the nitrogen content in cellulose carbamate brings about only a shift of the maximum decomposition rate towards lower temperatures. It can be concluded that cellulose carbamate heated to 320 °C is readily dehydrated and cross-linked, which results in the formation of aromatic structure.
Authors:Hee-Soo Kim, Byoung-Ho Lee, Sena Lee, Hyun-Joong Kim, and John R. Dorgan
low compatibility of bio-fillers with the matrix polymer. This deficiency in compatibility can lead to a loss of mechanical and thermalproperties of the composites [ 2 , 13 ]. Therefore, a study on ways to improve the interfacial adhesion between
and articular cartilage defects [ 1 , 6 – 10 ].
Knowledge of the thermalproperties of nanocomposite calcium or sodium alginate fibres is important because of their possible use as precursors for bioactive carbon structures. They can be used
concerning about ABS-co- N-PTMI ( N -p-tolylmaleimide).
In this article, heat resistance ABS resin was synthesized by emulsion polymerization of N-PTMI, butadiene-Styrene latex (SB), AN and St. The thermalproperties and the molecular mass of the
Authors:Ewa Olewnik, Krzysztof Garman, Grzegorz Piechota, and Wojciech Czerwiński
chemical affinity of modified surfaces.
DSC analysis has been carried out to study first-order transitions like melting and crystallization of newly obtained materials. Results are presented in Table 3
reached during the fire
The lineal and non-lineal parameter estimation procedures described in SPSS 11.5 with LSD test at the 95% probability level were used to fit the experimental data of the thermalproperties of the heated samples. The values